//
//  OXGameController.swift
//  NoughtsAndCrosses
//
//  Created by Alejandro Castillejo on 6/2/16.
//  Copyright © 2016 Julian Hulme. All rights reserved.
//

import Foundation
import UIKit
import SwiftyJSON


class OXGameController: WebService {

//    var gameList:[OXGame]? = []
    private var currentGame: OXGame = OXGame()


    class var sharedInstance: OXGameController {
        struct Static {
            static var instance:OXGameController?
            static var token: dispatch_once_t = 0
        }

        dispatch_once(&Static.token)    {
            Static.instance = OXGameController()
        }
        return Static.instance!

    }

//    func getListOfGames() -> [OXGame]? {
////        print("Getting list of games")
//
//        if(gameList?.count == 0){
//
//            let random: Int = Int(arc4random_uniform(UInt32(3)) + 2)
//            //Create games
//            for _ in 1...random {
//                self.gameList?.append(createGameWithHostUser("hostuser@gmail.com"))
//
//            }
//
//        }
//
//        return gameList
//
//    }

    func gameList(presentingViewController:UIViewController? = nil, viewControllerCompletionFunction:([OXGame]?,String?) -> ()) {



    }

    private func setCurrentGame(game: OXGame){
        currentGame = game
    }

    func getCurrentGame() -> OXGame? {
//        print("Getting current game")

        return currentGame
    }

    func createGameWithHostUser(hostEmail: String) -> OXGame {

        let game = OXGame()
        game.gameId = getRandomID()
        game.hostUser = User(email:hostEmail,password: "",token:"",client:"")
        return game

    }


    //Can only be called when there is an active game
    func playMove(index: Int) -> CellType{
//        print("PlayingMove on 'network'")

        let cellType: CellType = currentGame.playMove(index)
        return cellType
    }

    //Simple random move, it will always try to play the first indexes
    func playRandomMove() -> (CellType, Int)? {
//        print("Playing random move")

        for i in 0...currentGame.board.count - 1 {
            if (currentGame.board[i] == CellType.EMPTY){
                let cellType: CellType = (currentGame.playMove(i))!
//                    print(cellType)
//                    print("Succesfully at: " + String(i))
                return (cellType, i)
            }
        }
//        print("Unsuccesfully")
        return nil

    }

    func createNewGame(host:User, presentingViewController:UIViewController? = nil, viewControllerCompletionFunction:(OXGame?,String?) -> ())   {
        print("Creating new network game")

    }


//    func acceptGameWithId(gameId: String) -> OXGame? {
////        print("Accepting network game")
//        for game in self.gameList!    {
//            if (game.gameId == gameId)  {
//                setCurrentGame(game)
////                print("Succesfully")
//                return game
//            }
//
//        }
////        print("Not succesfully")
//        return nil
//    }


    func acceptGame(id:String, presentingViewController:UIViewController? = nil, viewControllerCompletionFunction:(OXGame?,String?) -> ()) {

    }

    func finishCurrentGame(){
        print("Finishing current game")

//        if(gameList != nil && gameList?.count != 0){
//            var reducer = 0
//            for i in 0...(gameList?.count)! - 1{
//                if (getCurrentGame()?.gameId == gameList![i - reducer].gameId){
//                    gameList?.removeAtIndex(i)
//                    reducer += 1
//                }
//            }
//        }
//
        currentGame.reset()

        setCurrentGame(OXGame())
    }

    //Helper functions
    private func getRandomID() -> String {
        let letters : NSString = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
        let len: Int = 10
        let randomString : NSMutableString = NSMutableString(capacity: len)

        for _ in 1...len {
            let length = UInt32 (letters.length)
            let rand = arc4random_uniform(length)
            randomString.appendFormat("%C", letters.characterAtIndex(Int(rand)))
        }

        return randomString as String
    }

}